Endeavour flies over Ariz. en route to Calif. home

Credit: AFP/Getty Images

US space shuttles Discovery (L) and Endeavour (R) on August 11, 2011 are positioned for a photo during a move that swapped storage areas at Kennedy Space Center, Florida to facilitate more work on Discovery in preparation for her transfer to Virginia. Space shuttles Endeavour and Discovery switched buildings as they are being decommissioned with the end of the Shuttle program. Discovery will sit in retirement at the Smithsonian Air & Space Museum annex outside Washington, DC, and Endeavour will head to the California Science Center in Los Angeles. AFP PHOTO/Bruce Weaver (Photo credit should read BRUCE WEAVER/AFP/Getty Images)